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Support pod_ready_time and pod_container_ready_time
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Co-authored-by: Szymon Grzemski <sz.grzemski@gmail.com>
Signed-off-by: Lan Liang <gcslyp@gmail.com>
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@liangyuanpeng @sgrzemski @ryanrolds
2 people authored and ryanrolds committed Jan 11, 2023
1 parent f1288f9 commit 4d8c58a
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54 changes: 28 additions & 26 deletions docs/pod-metrics.md
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Original file line number Diff line number Diff line change
@@ -1,31 +1,33 @@
# Pod Metrics

| Metric name| Metric type | Description | Unit (where applicable) | Labels/tags | Status | Opt-in |
| ---------- | ----------- |-----------------------------------------------------------------------| ----------------------- | ----------- | ------ | ------ |
| kube_pod_annotations | Gauge | Kubernetes annotations converted to Prometheus labels | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `annotation_POD_ANNOTATION`=&lt;POD_ANNOTATION&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | -
| kube_pod_info | Gauge | Information about pod | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `host_ip`=&lt;host-ip&gt; <br> `pod_ip`=&lt;pod-ip&gt; <br> `node`=&lt;node-name&gt;<br> `created_by_kind`=&lt;created_by_kind&gt;<br> `created_by_name`=&lt;created_by_name&gt;<br> `uid`=&lt;pod-uid&gt;<br> `priority_class`=&lt;priority_class&gt;<br> `host_network`=&lt;host_network&gt;| STABLE | - |
| kube_pod_ips | Gauge | Pod IP addresses | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `ip`=&lt;pod-ip-address&gt; <br> `ip_family`=&lt;4 OR 6&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_start_time | Gauge | Start time in unix timestamp for a pod | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_completion_time | Gauge | Completion time in unix timestamp for a pod | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_owner | Gauge | Information about the Pod's owner | |`pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `owner_kind`=&lt;owner kind&gt; <br> `owner_name`=&lt;owner name&gt; <br> `owner_is_controller`=&lt;whether owner is controller&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_labels | Gauge | Kubernetes labels converted to Prometheus labels | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `label_POD_LABEL`=&lt;POD_LABEL&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_nodeselectors| Gauge | Describes the Pod nodeSelectors | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `nodeselector_NODE_SELECTOR`=&lt;NODE_SELECTOR&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | Opt-in |
| kube_pod_status_phase | Gauge | The pods current phase | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `phase`=&lt;Pending\|Running\|Succeeded\|Failed\|Unknown&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_status_ready | Gauge | Describes whether the pod is ready to serve requests | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `condition`=&lt;true\|false\|unknown&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_status_scheduled | Gauge | Describes the status of the scheduling process for the pod | |`pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `condition`=&lt;true\|false\|unknown&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_info | Gauge | Information about a container in a pod | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `image`=&lt;image-name&gt; <br> `image_id`=&lt;image-id&gt; <br> `image_spec`=&lt;image-spec&gt; <br> `container_id`=&lt;containerid&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_waiting | Gauge | Describes whether the container is currently in waiting state | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_waiting_reason | Gauge | Describes the reason the container is currently in waiting state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `reason`=&lt;container-waiting-reason&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_running | Gauge | Describes whether the container is currently in running state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_state_started | Gauge | Start time in unix timestamp for a pod container | seconds |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_terminated | Gauge | Describes whether the container is currently in terminated state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_terminated_reason | Gauge | Describes the reason the container is currently in terminated state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `reason`=&lt;container-terminated-reason&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_status_last_terminated_reason | Gauge | Describes the last reason the container was in terminated state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `reason`=&lt;last-terminated-reason&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_status_last_terminated_exitcode | Gauge | Describes the exit code for the last container in terminated state. | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_status_ready | Gauge | Describes whether the containers readiness check succeeded | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_restarts_total | Counter | The number of container restarts per container | | `container`=&lt;container-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `pod`=&lt;pod-name&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_resource_requests | Gauge | The number of requested request resource by a container. It is recommended to use the `kube_pod_resource_requests` metric exposed by kube-scheduler instead, as it is more precise. | `cpu`=&lt;core&gt; <br> `memory`=&lt;bytes&gt; |`resource`=&lt;resource-name&gt; <br> `unit`=&lt;resource-unit&gt; <br> `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `node`=&lt; node-name&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_resource_limits | Gauge | The number of requested limit resource by a container. It is recommended to use the `kube_pod_resource_limits` metric exposed by kube-scheduler instead, as it is more precise. | `cpu`=&lt;core&gt; <br> `memory`=&lt;bytes&gt; |`resource`=&lt;resource-name&gt; <br> `unit`=&lt;resource-unit&gt; <br> `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `node`=&lt; node-name&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| Metric name| Metric type | Description | Unit (where applicable) | Labels/tags | Status | Opt-in |
| ---------- | ----------- | ----------- | ----------------------- | ----------- | ------ | ------ |
| kube_pod_annotations | Gauge | Kubernetes annotations converted to Prometheus labels | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `annotation_POD_ANNOTATION`=&lt;POD_ANNOTATION&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | -
| kube_pod_info | Gauge | Information about pod | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `host_ip`=&lt;host-ip&gt; <br> `pod_ip`=&lt;pod-ip&gt; <br> `node`=&lt;node-name&gt;<br> `created_by_kind`=&lt;created_by_kind&gt;<br> `created_by_name`=&lt;created_by_name&gt;<br> `uid`=&lt;pod-uid&gt;<br> `priority_class`=&lt;priority_class&gt;<br> `host_network`=&lt;host_network&gt;| STABLE | - |
| kube_pod_ips | Gauge | Pod IP addresses | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `ip`=&lt;pod-ip-address&gt; <br> `ip_family`=&lt;4 OR 6&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_start_time | Gauge | Start time in unix timestamp for a pod | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_completion_time | Gauge | Completion time in unix timestamp for a pod | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_owner | Gauge | Information about the Pod's owner | |`pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `owner_kind`=&lt;owner kind&gt; <br> `owner_name`=&lt;owner name&gt; <br> `owner_is_controller`=&lt;whether owner is controller&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_labels | Gauge | Kubernetes labels converted to Prometheus labels | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `label_POD_LABEL`=&lt;POD_LABEL&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_nodeselectors| Gauge | Describes the Pod nodeSelectors | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `nodeselector_NODE_SELECTOR`=&lt;NODE_SELECTOR&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | Opt-in |
| kube_pod_status_phase | Gauge | The pods current phase | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `phase`=&lt;Pending\|Running\|Succeeded\|Failed\|Unknown&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_status_ready | Gauge | Describes whether the pod is ready to serve requests | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `condition`=&lt;true\|false\|unknown&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_status_ready_time | Gauge | Time when pod passed readiness probes. | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE |
| kube_pod_status_container_ready_time | Gauge | Time when the container of the pod entered Ready state. | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE |
| kube_pod_status_scheduled | Gauge | Describes the status of the scheduling process for the pod | |`pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `condition`=&lt;true\|false\|unknown&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_info | Gauge | Information about a container in a pod | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `image`=&lt;image-name&gt; <br> `image_id`=&lt;image-id&gt; <br> `image_spec`=&lt;image-spec&gt; <br> `container_id`=&lt;containerid&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_waiting | Gauge | Describes whether the container is currently in waiting state | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_waiting_reason | Gauge | Describes the reason the container is currently in waiting state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `reason`=&lt;container-waiting-reason&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_running | Gauge | Describes whether the container is currently in running state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_state_started | Gauge | Start time in unix timestamp for a pod container | seconds |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_terminated | Gauge | Describes whether the container is currently in terminated state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_terminated_reason | Gauge | Describes the reason the container is currently in terminated state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `reason`=&lt;container-terminated-reason&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_status_last_terminated_reason | Gauge | Describes the last reason the container was in terminated state | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `reason`=&lt;last-terminated-reason&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_status_last_terminated_exitcode | Gauge | Describes the exit code for the last container in terminated state. | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_status_ready | Gauge | Describes whether the containers readiness check succeeded | |`container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_status_restarts_total | Counter | The number of container restarts per container | | `container`=&lt;container-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `pod`=&lt;pod-name&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_container_resource_requests | Gauge | The number of requested request resource by a container | `cpu`=&lt;core&gt; <br> `memory`=&lt;bytes&gt; |`resource`=&lt;resource-name&gt; <br> `unit`=&lt;resource-unit&gt; <br> `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `node`=&lt; node-name&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_container_resource_limits | Gauge | The number of requested limit resource by a container | `cpu`=&lt;core&gt; <br> `memory`=&lt;bytes&gt; |`resource`=&lt;resource-name&gt; <br> `unit`=&lt;resource-unit&gt; <br> `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `node`=&lt; node-name&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_overhead_cpu_cores | Gauge | The pod overhead in regards to cpu cores associated with running a pod | core |`pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_overhead_memory_bytes | Gauge | The pod overhead in regards to memory associated with running a pod | bytes |`pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_runtimeclass_name_info | Gauge | The runtimeclass associated with the pod | |`pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
Expand Down
54 changes: 54 additions & 0 deletions internal/store/pod.go
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,8 @@ func podMetricFamilies(allowAnnotationsList, allowLabelsList []string) []generat
createPodStartTimeFamilyGenerator(),
createPodStatusPhaseFamilyGenerator(),
createPodStatusReadyFamilyGenerator(),
createPodStatusReadyTimeFamilyGenerator(),
createPodStatusContainerReadyTimeFamilyGenerator(),
createPodStatusReasonFamilyGenerator(),
createPodStatusScheduledFamilyGenerator(),
createPodStatusScheduledTimeFamilyGenerator(),
Expand Down Expand Up @@ -1317,6 +1319,58 @@ func createPodStatusPhaseFamilyGenerator() generator.FamilyGenerator {
)
}

func createPodStatusContainerReadyTimeFamilyGenerator() generator.FamilyGenerator {
return *generator.NewFamilyGenerator(
"kube_pod_status_container_ready_time",
"Readiness achieved time in unix timestamp for a pod containers.",
metric.Gauge,
"",
wrapPodFunc(func(p *v1.Pod) *metric.Family {
ms := []*metric.Metric{}

for _, c := range p.Status.Conditions {
if c.Type == v1.ContainersReady {
ms = append(ms, &metric.Metric{
LabelKeys: []string{},
LabelValues: []string{},
Value: float64((c.LastTransitionTime).Unix()),
})
}
}

return &metric.Family{
Metrics: ms,
}
}),
)
}

func createPodStatusReadyTimeFamilyGenerator() generator.FamilyGenerator {
return *generator.NewFamilyGenerator(
"kube_pod_status_ready_time",
"Readiness achieved time in unix timestamp for a pod.",
metric.Gauge,
"",
wrapPodFunc(func(p *v1.Pod) *metric.Family {
ms := []*metric.Metric{}

for _, c := range p.Status.Conditions {
if c.Type == v1.PodReady {
ms = append(ms, &metric.Metric{
LabelKeys: []string{},
LabelValues: []string{},
Value: float64((c.LastTransitionTime).Unix()),
})
}
}

return &metric.Family{
Metrics: ms,
}
}),
)
}

func createPodStatusReadyFamilyGenerator() generator.FamilyGenerator {
return *generator.NewFamilyGeneratorWithStability(
"kube_pod_status_ready",
Expand Down
14 changes: 13 additions & 1 deletion internal/store/pod_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1426,13 +1426,19 @@ func TestPodStore(t *testing.T) {
{
Type: v1.PodReady,
Status: v1.ConditionTrue,
LastTransitionTime: metav1.Time{
Time: time.Unix(1501666018, 0),
},
},
},
},
},
Want: `
# HELP kube_pod_status_ready [STABLE] Describes whether the pod is ready to serve requests.
# HELP kube_pod_status_ready_time Readiness achieved time in unix timestamp for a pod.
# TYPE kube_pod_status_ready gauge
# TYPE kube_pod_status_ready_time gauge
kube_pod_status_ready_time{namespace="ns1",pod="pod1",uid="uid1"} 1.501666018e+09
kube_pod_status_ready{condition="false",namespace="ns1",pod="pod1",uid="uid1"} 0
kube_pod_status_ready{condition="true",namespace="ns1",pod="pod1",uid="uid1"} 1
kube_pod_status_ready{condition="unknown",namespace="ns1",pod="pod1",uid="uid1"} 0
Expand All @@ -1451,13 +1457,19 @@ func TestPodStore(t *testing.T) {
{
Type: v1.PodReady,
Status: v1.ConditionFalse,
LastTransitionTime: metav1.Time{
Time: time.Unix(1501666018, 0),
},
},
},
},
},
Want: `
# HELP kube_pod_status_ready [STABLE] Describes whether the pod is ready to serve requests.
# HELP kube_pod_status_ready_time Readiness achieved time in unix timestamp for a pod.
# TYPE kube_pod_status_ready gauge
# TYPE kube_pod_status_ready_time gauge
kube_pod_status_ready_time{namespace="ns2",pod="pod2",uid="uid2"} 1.501666018e+09
kube_pod_status_ready{condition="false",namespace="ns2",pod="pod2",uid="uid2"} 1
kube_pod_status_ready{condition="true",namespace="ns2",pod="pod2",uid="uid2"} 0
kube_pod_status_ready{condition="unknown",namespace="ns2",pod="pod2",uid="uid2"} 0
Expand Down Expand Up @@ -2079,7 +2091,7 @@ func BenchmarkPodStore(b *testing.B) {
},
}

expectedFamilies := 47
expectedFamilies := 49
for n := 0; n < b.N; n++ {
families := f(pod)
if len(families) != expectedFamilies {
Expand Down
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